Drug

PN 400

As of the edition of 20 October 2026, PN 400 is a drug known only by a code name: went quiet in 2010; acts on ATP4A, ATP4B and PTGS1 and 1 more.

Sources: FDA Orange Book and Purple Book, other approval registers, ClinicalTrials.gov, ChEMBL.

The drug

Status
Went quiet, 2010
Kind
Code name only
Registered trials
9, 0 stopped early
Disease areas
Bones, joints and muscles

US protection

No US approval on record.

With no US approval on record there are no listed US patents or exclusivities.

This is the US only.

Companies that need a new molecule because of this drug

1 company-target row on route B and 5 company-target rows on route A because of this drug.

Companies on route B for this drug

In the product

1 company-target row is on route B because of PN 400.

Companies on route A for this drug

In the product

5 company-target rows are on route A because of PN 400.

Targets

GeneProteinUniProt
ATP4APotassium-transporting ATPase alpha chain 1P20648
PTGS1Prostaglandin G/H synthase 1P23219
PTGS2Prostaglandin G/H synthase 2P35354
ATP4BPotassium-transporting ATPase subunit betaP51164

Registered trials

PhaseTrialsCompletedActiveStopped early
Phase 19900
All trials9

Who ran its trials

CompanyRoleYears
PozenLead sponsor of trials2008 to now
AstraZenecaLead sponsor of trials2008 to now